/* 清除浏览器默认边距，
使边框和内边距的值包含在元素的width和height内 */
/* * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
} */
@charset "UTF-8";
*,::after,::before{-webkit-box-sizing:border-box;box-sizing:border-box}
html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
article,aside,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}
body{margin:0;font-family:Nunito,sans-serif;font-size:.875rem;font-weight:400;line-height:1.5;color:#6c757d;text-align:left;background-color:#fafbfe}
[tabindex="-1"]:focus{outline:0!important}
hr{-webkit-box-sizing:content-box;box-sizing:content-box;height:0;overflow:visible}
h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:1.5rem}
p{margin-top:0;margin-bottom:1rem}
abbr[data-original-title],abbr[title]{text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;border-bottom:0;text-decoration-skip-ink:none}
address{margin-bottom:1rem;font-style:normal;line-height:inherit}
dl,ol,ul{margin-top:0;margin-bottom:1rem}
ol ol,ol ul,ul ol,ul ul{margin-bottom:0}
dt{font-weight:700}
dd{margin-bottom:.5rem;margin-left:0}
blockquote{margin:0 0 1rem}
b,strong{font-weight:bolder}
small{font-size:80%}
sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}
sub{bottom:-.25em}
sup{top:-.5em}
a{color:#727cf5;text-decoration:none;background-color:transparent}
a:hover{color:#2b3af0;text-decoration:none}
a:not([href]):not([tabindex]){color:inherit;text-decoration:none}
a:not([href]):not([tabindex]):focus,a:not([href]):not([tabindex]):hover{color:inherit;text-decoration:none}
a:not([href]):not([tabindex]):focus{outline:0}
code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em}
pre{margin-top:0;margin-bottom:1rem;overflow:auto}
figure{margin:0 0 1rem}
img{vertical-align:middle;border-style:none}
svg{overflow:hidden;vertical-align:middle}
table{border-collapse:collapse}
caption{padding-top:.95rem;padding-bottom:.95rem;color:#6c757d;text-align:left;caption-side:bottom}
th{text-align:inherit}
label{display:inline-block;margin-bottom:.5rem}
button{border-radius:0}
button:focus{outline:1px dotted;outline:5px auto -webkit-focus-ring-color}
button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}
button,input{overflow:visible}
button,select{text-transform:none}
select{word-wrap:normal}
[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}
[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}
[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{padding:0;border-style:none}
input[type=checkbox],input[type=radio]{-webkit-box-sizing:border-box;box-sizing:border-box;padding:0}
input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}
textarea{overflow:auto;resize:vertical}
fieldset{min-width:0;padding:0;margin:0;border:0}
legend{display:block;width:100%;max-width:100%;padding:0;margin-bottom:.5rem;font-size:1.5rem;line-height:inherit;color:inherit;white-space:normal}
progress{vertical-align:baseline}
[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}
[type=search]{outline-offset:-2px;-webkit-appearance:none}
[type=search]::-webkit-search-decoration{-webkit-appearance:none}
::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}
output{display:inline-block}
summary{display:list-item;cursor:pointer}
template{display:none}
[hidden]{display:none!important}
.h1,.h2,.h3,.h4,.h5,.h6,h1,h2,h3,h4,h5,h6{margin-bottom:1.5rem;font-weight:400;line-height:1.1}
.h1,h1{font-size:2.25rem}
.h2,h2{font-size:1.875rem}
.h3,h3{font-size:1.5rem}
.h4,h4{font-size:1.125rem}
.h5,h5{font-size:.9375rem}
.h6,h6{font-size:.75rem}

/* 使用flex布局，让内容垂直和水平居中 */
section {
    /* 相对定位 */
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    /* linear-gradient() 函数用于创建一个表示两种或多种颜色线性渐变的图片 */
    background: linear-gradient(to bottom, #f1f4f9, #dff1ff);
}

/* 背景颜色 */
section .color {
    /* 绝对定位 */
    position: absolute;
    /* 使用filter(滤镜) 属性，给图像设置高斯模糊*/
    filter: blur(200px);
}

/* :nth-child(n) 选择器匹配父元素中的第 n 个子元素 */
section .color:nth-child(1) {
    top: -350px;
    width: 600px;
    height: 600px;
    background: #ff359b;
}

section .color:nth-child(2) {
    bottom: -150px;
    left: 100px;
    width: 500px;
    height: 500px;
    background: #fffd87;
}

section .color:nth-child(3) {
    bottom: 50px;
    right: 100px;
    width: 500px;
    height: 500px;
    background: #00d2ff;
}

.box {
    position: relative;
}

/* 背景圆样式 */
.box .circle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    /* backdrop-filter属性为一个元素后面区域添加模糊效果 */
    backdrop-filter: blur(5px);
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    /* 使用filter(滤镜) 属性，改变颜色。
    hue-rotate(deg)  给图像应用色相旋转 
    calc() 函数用于动态计算长度值 
    var() 函数调用自定义的CSS属性值x*/
    filter: hue-rotate(calc(var(--x) * 70deg));
    /* 调用动画animate，需要10s完成动画，
    linear表示动画从头到尾的速度是相同的，
    infinite指定动画应该循环播放无限次*/
    animation: animate 10s linear infinite;
    /* 动态计算动画延迟几秒播放 */
    animation-delay: calc(var(--x) * -1s);
}

/* 背景圆动画 */
@keyframes animate {
    0%, 100%{
        transform: translateY(-50px);
    }
    50% {
        transform: translateY(50px);
    }
}

.box .circle:nth-child(1) {
    top: -50px;
    right: -60px;
    width: 100px;
    height: 100px;
}

.box .circle:nth-child(2) {
    top: 150px;
    left: -100px;
    width: 120px;
    height: 120px;
    z-index: 2;
}

.box .circle:nth-child(3) {
    bottom: 50px;
    right: -60px;
    width: 80px;
    height: 80px;
    z-index: 2;
}

.box .circle:nth-child(4) {
    bottom: -80px;
    left: 100px;
    width: 60px;
    height: 60px;
}

.box .circle:nth-child(5) {
    top: -80px;
    left: 140px;
    width: 60px;
    height: 60px;
}

/* 登录框样式 */
.container {
    position: relative;
    width: 400px;
    min-height: 400px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.form {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 50px;
}

/* 登录标题样式 */
.form h2 {
    position: relative;
    color: #fff;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 5px;
    margin-bottom: 30px;
    cursor: pointer;
}

/* 登录标题的下划线样式 */
.form h2::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 0px;
    height: 3px;
    background: #fff;
    transition: 0.5s;
}

.form h2:hover:before {
    width: 53px;
}

.form .inputBox {
    width: 100%;
    margin-top: 20px;
}

/* 输入框样式 */
.form .inputBox input {
    width: 100%;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    border: none;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 16px;
    letter-spacing: 1px;
    color: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.form .inputBox input::placeholder {
    color: #fff;
}

/* 登录按钮样式 */
.form .inputBox input[type="submit"] {
    background: #fff;
    color: #666;
    max-width: 100px;
    margin-bottom: 20px;
    font-weight: 600;
    cursor: pointer;
}

.form .inputBox button {
    background: #fff;
    color: #666;
    max-width: 50%;
    margin-bottom: 20px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    padding: 10px 10px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 16px;
    letter-spacing: 1px;
    box-shadow: 0 5px 15px rgb(0 0 0 / 5%);
}
.login .spinner-border{width: 1.4em;height: 1.4em;}

.forget {
    margin-top: 6px;
    color: #fff;
    letter-spacing: 1px;
}

.forget a {
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}

#auth .input-group{margin-top: 20px;}

#auth .input-group input{
    height:unset;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    border: none;
    border-radius: 30px 0 0 30px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 16px;
    letter-spacing: 1px;
    color: #fff;
    box-shadow: 0 5px 15px rgb(0 0 0 / 5%);
}

#auth .input-group input::placeholder {
    color: #fff;
}
#auth .input-group input:focus{
    box-shadow: 0 5px 15px rgb(0 0 0 / 5%)!important;
}

/* 超小设备（手机，小于 768px） */
@media screen and (max-width:768px) {
    #auth .container {width: unset;}
}